<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1253683
-->
<head>
  <title>Test to ensure non-scrollable frames don't get layerized</title>
  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
  <script type="application/javascript" src="/tests/SimpleTest/paint_listener.js"></script>
  <script type="application/javascript" src="apz_test_native_event_utils.js"></script>
  <script type="application/javascript" src="apz_test_utils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
 <p id="display"></p>
 <div id="container" style="height: 500px; overflow:scroll">
  <pre id="no_layer" style="background-color: #f5f5f5; margin: 15px; padding: 15px; margin-top: 100px; border: 1px solid #eee; overflow:scroll">sample code here</pre>
  <div style="height: 5000px">spacer to make the 'container' div the root scrollable element</div>
 </div>
<pre id="test">
<script type="application/javascript;version=1.7">

function* test(testDriver) {
  var container = document.getElementById('container');
  var no_layer = document.getElementById('no_layer');

  // Check initial state
  is(container.scrollTop, 0, "Initial scrollY should be 0");
  ok(!isLayerized('no_layer'), "initially 'no_layer' should not be layerized");

  // Scrolling over outer1 should layerize outer1, but not inner1.
  yield moveMouseAndScrollWheelOver(no_layer, 10, 10, testDriver, true);
  yield waitForAllPaints(function() {
    flushApzRepaints(testDriver);
  });

  ok(container.scrollTop > 0, "We should have scrolled the body");
  ok(!isLayerized('no_layer'), "no_layer should still not be layerized");
}

if (isApzEnabled()) {
  SimpleTest.waitForExplicitFinish();

  // Turn off displayport expiry so that we don't miss failures where the
  // displayport is set and expired before we check for layerization.
  // Also enable APZ test logging, since we use that data to determine whether
  // a scroll frame was layerized.
  pushPrefs([["apz.displayport_expiry_ms", 0],
             ["apz.test.logging_enabled", true]])
  .then(waitUntilApzStable)
  .then(runContinuation(test))
  .then(SimpleTest.finish);
}

</script>
</pre>
</body>
</html>
